MvcCore/views/viewevents.h

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00001 /*  -*- c++ -*-  (for Emacs)
00002  *
00003  *  viewevents.h
00004  *  Digest
00005  * 
00006  *  Created by Aidan Lane on Mon Aug 29 2005.
00007  *  Copyright (c) 2005 Optimisation and Constraint Solving Group,
00008  *  Monash University. All rights reserved.
00009  *
00010  *  This program is free software; you can redistribute it and/or modify
00011  *  it under the terms of the GNU General Public License as published by
00012  *  the Free Software Foundation; either version 2 of the License, or
00013  *  (at your option) any later version.
00014  *
00015  *  This program is distributed in the hope that it will be useful,
00016  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00017  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018  *  GNU General Public License for more details.
00019  *
00020  *  You should have received a copy of the GNU General Public License
00021  *  along with this program; if not, write to the Free Software
00022  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
00023  */
00024 
00025 #ifndef VIEWEVENTS_H
00026 #define VIEWEVENTS_H
00027 
00028 
00029 #include "mvcevent.h"
00030 #include "mvccontainers.h"
00031 
00032 
00033 class QObject;
00034 
00035 class AbstractController;
00036 class AbstractModel;
00037 
00038 
00053 class VEvent : public MvcEvent {
00054 public:
00055   enum Type {
00056     ChangeController  = MvcEvent::User,
00057     ModelChanged,
00058     Reset,
00059     User              = MvcEvent::User + 1000
00060   };
00061 
00062   VEvent( Type type, MvcBase* sender )
00063     : MvcEvent((MvcEvent::Type)type),
00064       m_sender(sender) {}
00065 
00067   inline static DestType classDestType() { return View; }
00069   virtual DestType destType() const { return classDestType(); }
00070 
00071   MvcBase* sender() const { return m_sender; }
00072 
00073 private:
00074   // Note: The sender can't be const, as the view may need to send message back.
00075   MvcBase* m_sender;
00076 };
00077 
00078 
00079 class VChangeControllerEvent : public VEvent, public AbstractControllerContainer {
00080 public:
00081   VChangeControllerEvent( AbstractController* controller, MvcBase* sender )
00082     : VEvent(ChangeController, sender),
00083       AbstractControllerContainer(controller) {}
00084 };
00085 
00086 
00087 class VModelChangedEvent : public VEvent, public AbstractModelContainer {
00088 public:
00089   VModelChangedEvent( AbstractModel* model, MvcBase* sender )
00090     : VEvent(ModelChanged, sender),
00091       AbstractModelContainer(model) {}
00092 };
00093 
00094 
00095 #endif // ! VIEWEVENTS_H

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